I really like it and its entirely analog nature is refreshing. It makes sense to set aside something like a raspberry pi for it (I would never use a PC, especially on update tuesdays. And I would not want to set my PC audio to full blast so the output swings the full +-2.5V).

Mechanically delicate though. Vibrations disturbing the surface of the liquid will skew the print and cause poor layer adhesion. And you have to make sure your surface is perfectly level.